function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

function MM_jumpMenu(targ,selObj,restore){ //v3.0
  eval(targ+".location='"+selObj.options[selObj.selectedIndex].value+"'");
  if (restore) selObj.selectedIndex=0;
}

function MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}

// _____________________________________________________________________________
//                                                                   swap images

// preload and swap images
function initRollOvers() {
	var suffix = "_over";		// suffix for image filename
	var target_class = "ro";	// target class name
	var d_attr = "dsrc";		// attribute for default image source
	var s_attr = "ssrc";		// attribute for swap image source

	if( !document.getElementById ) {
		return;
	}

	// get image objects
	var preLoads = new Array();
	var allImages = document.getElementsByTagName( "img" );

	for( var i = 0; i < allImages.length; i++ ) {
		if( allImages[i].className == target_class || allImages[i].className.indexOf( target_class + " " ) != -1 || allImages[i].className.indexOf( " " + target_class ) != -1 ) {
			var src = allImages[i].getAttribute( "src" );
			var extension = src.substring(src.lastIndexOf( "." ), src.length );
			var oSrc = src.replace( extension, suffix + extension );

			// set default image and swap image
			allImages[i].setAttribute( d_attr, src );
			allImages[i].setAttribute( s_attr, oSrc );

			// preload swap images
			preLoads[i] = new Image();
			preLoads[i].src = oSrc;

			// register eventhandler
			allImages[i].onmouseover = function() {
				if( this.getAttribute( "src" ).indexOf( status ) == -1 ){
					this.setAttribute("src", this.getAttribute( s_attr ));
				}
			}
			allImages[i].onmouseout = function() {
				if( this.getAttribute( "src" ).indexOf( status ) == -1 ){
					this.setAttribute("src", this.getAttribute( d_attr ));
				}
			}
		}
	}
}

// _____________________________________________________________________________
//                                                    switch cascade style sheet

function setActiveStyleSheet(title) {
	var i, a, main;
	var type = new Array("small", "middle", "large");

	if( title == "" || title == null || title == "null" ){
		title = "middle";
	}
	status = title;

	for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
		if(a.getAttribute("rel").indexOf("style") != -1 && a.getAttribute("title")) {
			a.disabled = true;
			if(a.getAttribute("title") == title) a.disabled = false;
		}
	}

	// initialize images
	var _src;
	var filename;
	var extension;
	var prefix = "charactor_";
	var objImg = null;
	for(i=0; i<type.length; i++){
		objImg = document.getElementById("size_"+type[i]);
		if( objImg != null && objImg != "" ){
			_src = objImg.src;
			filename = _src.substring( 0, _src.lastIndexOf(".") );
			extension = _src.substring( _src.lastIndexOf(".") );
			filename = filename.substring( 0, filename.lastIndexOf("/")+1 );
			objImg.src = filename + prefix + type[i] + extension;
		}
		objImg = null;
	}

	// set active Image
	if( title != "" && title != null && title != "null" ){
		objImg = document.getElementById("size_"+title);
		if( objImg != null && objImg != "" ){
			_src = objImg.src;
			filename = _src.substring( 0, _src.lastIndexOf(".") );
			extension = _src.substring( _src.lastIndexOf(".") );
			filename = filename.substring( 0, filename.lastIndexOf("/")+1 );
			objImg.src = filename + prefix + title + "_over" + extension;
		}
	} else {
		objImg = document.getElementById("size_middle");
		if( objImg != null && objImg != "" ){
			_src = objImg.src;
			filename = _src.substring( 0, _src.lastIndexOf(".") );
			extension = _src.substring( _src.lastIndexOf(".") );
			filename = filename.substring( 0, filename.lastIndexOf("/")+1 );
			objImg.src = filename + prefix + "middle_over" + extension;
		}
	}
}

function getActiveStyleSheet() {
	var i, a;
	for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
		if(a.getAttribute("rel").indexOf("style") != -1 && a.getAttribute("title") && !a.disabled) return a.getAttribute("title");
	}
	return null;
}

function getPreferredStyleSheet() {
	var i, a;
	for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
		if(a.getAttribute("rel").indexOf("style") != -1
			 && a.getAttribute("rel").indexOf("alt") == -1
			 && a.getAttribute("title")
			 ) return a.getAttribute("title");
	}
	return null;
}

function createCookie(name,value,days) {
	if (days) {
		var date = new Date();
		date.setTime(date.getTime()+(days*24*60*60*1000));
		var expires = "; expires="+date.toGMTString();
	}
	else expires = "";
	document.cookie = name+"="+value+expires+"; path=/";
}

function readCookie(name) {
	var nameEQ = name + "=";
	var ca = document.cookie.split(';');
	for(var i=0;i < ca.length;i++) {
		var c = ca[i];
		while (c.charAt(0)==' ') c = c.substring(1,c.length);
		if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
	}
	return null;
}

// _____________________________________________________________________________
//                                                                event listener

function loadStyle() {
	initRollOvers();

	var cookie = readCookie("style");
	var title = cookie ? cookie : getPreferredStyleSheet();
	setActiveStyleSheet(title);
}

/*
window.onload = function(e) {
	var cookie = readCookie("style");
	alert("read : " + cookie);
	var title = cookie ? cookie : getPreferredStyleSheet();
	alert(title);
	setActiveStyleSheet(title);
}
*/

window.onunload = function(e) {
	var title = getActiveStyleSheet();
	createCookie("style", title, 365);
}

// _____________________________________________________________________________
//                                                                              

var cookie = readCookie("style");
var title = cookie ? cookie : getPreferredStyleSheet();
var status = "";
setActiveStyleSheet(title);



// _____________________________________________________________________________
//                                                                    change img

var dimg;

function ChgImgOn(target,img){
  if(document.getElementById){
    dimg = document.getElementById(target).getAttribute("src");
    document.getElementById(target).setAttribute("src", img);
  }
}
function ChgImgOut(target){
  if(document.getElementById){
    document.getElementById(target).setAttribute("src",dimg);
  }
}